# Directive 2009/45/EC of the European Parliament and of the Council of 6 May 2009 on safety rules and standards for passenger ships (Recast) (Text with EEA relevance), Division .2: In addition:

Extent: E+W+S+N.I.

.1 All stairways in accommodation and service spaces shall be of steel frame construction except where the Administration of the flag State sanctions the use of other equivalent material, and shall be within enclosures formed of ‘ A ’ class divisions, with positive means of closure at all openings, except that:
.1 a stairway connecting only two decks need not be enclosed, provided the integrity of the deck is maintained by proper bulkheads or doors in one between-deck space. When a stairway is closed in one between-deck space, the stairway enclosure shall be protected in accordance with the tables for decks in Regulation II-2/B/5;
.2 stairways may be fitted in the open in a public space, provided they lie wholly within such public space.
.2 Machinery spaces shall be fitted with a fixed fire-extinguishing system complying with the requirements of Regulation II-2/A/6.
.3 Ventilation ducts passing through divisions between main vertical zones shall be equipped with a fail-safe automatic closing fire damper which shall also be capable of being manually closed from each side of the division. In addition, fail-safe automatic closing fire dampers with manual operation from within the enclosure shall be fitted to all ventilation ducts serving both accommodation and service spaces and stairway enclosures where they pierce such enclosures. Ventilation ducts passing through a main fire zone division without serving spaces on both sides or passing through a stairway enclosure without serving that enclosure need not be fitted with dampers provided that the ducts are constructed and insulated to ‘ A-60 ’ standard and have no openings within the stairway enclosure or in the trunk on the side which is not directly served.
.4 Special category spaces shall comply with the requirements of Regulation II-2/B/14.
.5 All fire doors in stairway enclosures, main vertical zone bulkheads and galley boundaries which are normally kept open shall be capable of release from a central control station and from a position at the door.
.6 The requirements of paragraph .1.3.7 of this Regulation shall also apply to the accommodations.

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Source: https://www.legislation.gov.uk/eudr/2009/45/annex/I/chapter/3/part/B/division/16/division/.2 (the official version)
Page: https://openlegislation.uk/eu-directive-2009-45/annex-I/chapter-3/part-B/division-16/division-.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.